"There aren't names that are specifically Sicilian or Southern Italian," That is not true. As other Italic linguistic modalities, Sicilian is very different from standard Italian (which is mainly Toscan Italian), enough different to be considered a separate language by a part of Romance linguists. That means that even if standard Italian names are used, the Sicilian counterparts also exists and sometimes are very different from the standard ones. For instance, the Italian masculine ending -o contrasts with the Sicilian masculine ending -u (Italian
Gaetano, Sicilian Jtanu) or the Italian -e vs the Sicilian -i (
Salvatore vs Sabbaturi).
There is a little list of Sicilian names:
http://scn.wiktionary.org/wiki/Catigur%C3%ACa:Noma_propi_siciliani
Lumia
http://onomastica.elmeubloc.cathttp://onomastica.mailcatala.com